BEAT THE HEAT: BEST SWEAT & ODOR DEFENSE TIPS
Fun in the summer sun is hard to beat, but when heat and humidity ramp up, it can feel like you’re stepping into a sauna. Staying fresh at the beach, park, or outdoor events shouldn’t be a struggle. With the right routine, sweat and odor protection, plus on-the-go summer essentials, you can beat the heat and stay cool, dry, and confident no matter how high the temperature climbs.
WHY HEAT AND HUMIDITY MAKE YOU SWEAT MORE
When the mercury rises, your body relies on sweat to cool down. But high humidity can get in the way. The higher the humidity, the harder it is for sweat to evaporate from your skin, leaving you feeling hotter, stickier, and more uncomfortable.
“Heat increases how much sweat the body produces, while high humidity slows sweat evaporation, causing moisture to sit on the skin instead of cooling it,” explains Unilever R&D Manager David Waters. “When sweat lingers in warm, damp conditions, it creates an ideal environment for bacteria to grow and break sweat down into odor‑causing compounds. As a result, hot and humid weather often makes both wetness and body odor more noticeable and longer lasting.”
In other words: more heat + more humidity = more sweat and more noticeable body odor. That’s why having the right sweat and odor defense routine matters even more in summer.
PLAN AHEAD BEFORE GOING OUTDOORS
Preparation is your best defense against the heat when you’re spending time outdoors. From choosing the right sweat protection to packing cooling essentials, a little planning before you leave can help you stay fresh and comfortable for longer.
Know your sweat and odor protection
Your product is your first line of defense before you even step outside. Antiperspirants tackle both sweat and odor and work best when applied to clean, dry skin, ideally before bed or a few hours before heading into the heat. For extra protection during long summer days, festivals, and outdoor events, look for clinical strength formulas or those with motion-activated sweat defense to respond when your body heat rises.
Adding a long-lasting whole-body deodorant to your routine can help keep odor under control beyond the underarms. This all-over deodorant can generally be used on other sweat-prone areas like the thighs, feet, and chest.
Many whole-body deodorants include odor-neutralizing ingredients, while some also add moisture-absorbing ingredients to help keep your skin feeling dry and comfortable throughout the day.
Picking the right product for you is an individual thing. If sweat and underarm odor are your biggest concerns, reach for an antiperspirant or clinical protection. Want freshness beyond your armpits? Give long-lasting, whole-body deodorant a try.
Dress smart
What you wear can make a difference in how comfortable you feel outdoors. Choose lightweight, breathable, moisture-wicking fabrics over heavy materials that trap heat and sweat.
Loose-fitting, light-colored clothing helps reflect sunlight and improves airflow, while Ultraviolet Protection Factor clothing adds an extra layer of sun protection. Finish the look with summer essentials like a wide-brim hat and UV-blocking sunglasses to help keep cool under the sun.
Check the forecast
Before heading outdoors, check the weather forecast and heat index on your weather app, so you know what conditions to expect. It’s also smart to pack a few hot-weather essentials ahead of time, including a refillable water bottle, SPF sunscreen, cooling towels or portable fans, and extra sweat and odor protection for touch-ups on the go.
HOW TO STAY COOL & COMFORTABLE IN THE SUMMER SUN
Stay ahead on hydration
Hydration is one of the easiest ways to help your body stay cool. Start drinking water before you head outside and keep sipping throughout the day instead of waiting until you feel thirsty.
If you’re spending hours outdoors or doing activities in extreme heat, electrolyte drinks can help replace minerals lost through sweat. Try to limit sugary or highly caffeinated drinks, which may contribute to dehydration.
Take shade breaks
Direct sunlight can quickly raise your body temperature, especially during peak afternoon heat. Rotate between sun and shade whenever possible.
If you’re heading to a beach day, sports game, festival, or outdoor concert, take an umbrella with you (if the venue allows it).
Cool-down accessories
Portable fans, cooling towels, misting sprays, and evaporative cooling gear can help lower your skin temperature and reduce that overheated feeling.
Keeping a cooling towel around your neck or using a handheld fan during outdoor events can help you stay more comfortable for longer.
Know the signs of heat stress
Too much heat can become dangerous if you ignore the warning signs.¹ When spending time outdoors with friends or family, use the buddy system to help watch for signs of overheating in each other. Pay attention to symptoms like:
- dizziness
- nausea
- headache
- confusion
If you start feeling unwell, move to a cooler area, lie down, and hydrate. Monitor your symptoms. If you feel worse or experience shallow breathing, headache, or other symptoms, seek medical attention immediately.¹
Recovering after a hot day outside
After a long day in the heat, give your body a chance to cool down and recover. Change out of sweaty layers, rinse off with a refreshing shower, and keep hydrating with water or electrolyte drinks to help you feel fresh and comfortable again.
FAQs
Is it safe to be outdoors in hot weather?
Yes, as long as you take precautions like drinking plenty of water, wearing breathable clothing, and taking regular breaks in the shade.
Why does humidity make you feel sweatier?
Humidity slows the evaporation of sweat from your skin, making your body feel hotter, stickier, and less comfortable.
What should you wear in hot weather to stay cool?
Lightweight, breathable, moisture-wicking clothing in lighter colors can help keep you cooler and more comfortable outdoors.
How often should you take breaks in the shade during hot weather?
During extreme heat, try taking shade breaks every 15–20 minutes, especially during peak afternoon temperatures.
What are the first signs of heat-related illness?
Early signs include dizziness, nausea, and headache. Move to a cooler area, apply cool towels to your body, and drink electrolytes. If symptoms don’t improve or you experience additional symptoms, seek medical help immediately.¹
Enjoying the outdoors in hot weather doesn’t have to be sticky and uncomfortable. Get ready to enjoy summer festivals, beach parties, and everything in between, armed with a plan and the best sweat and odor protection. The right habits and products will work together to help you stay ahead of the heat, keeping you fresh, comfortable, and confident all day long.
